1J9I

STRUCTURE OF THE DNA BINDING DOMAIN OF THE GPNU1 SUBUNIT OF LAMBDA TERMINASE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Insights into specific DNA recognition during the assembly of a viral genome packaging machine.

de Beer, T.Fang, J.Ortega, M.Yang, Q.Maes, L.Duffy, C.Berton, N.Sippy, J.Overduin, M.Feiss, M.Catalano, C.E.

(2002) Mol.Cell 9: 981-991


  • PubMed Abstract: 
  • Terminase enzymes mediate genome "packaging" during the reproduction of DNA viruses. In lambda, the gpNu1 subunit guides site-specific assembly of terminase onto DNA. The structure of the dimeric DNA binding domain of gpNu1 was solved using nuclear m ...

    Terminase enzymes mediate genome "packaging" during the reproduction of DNA viruses. In lambda, the gpNu1 subunit guides site-specific assembly of terminase onto DNA. The structure of the dimeric DNA binding domain of gpNu1 was solved using nuclear magnetic resonance spectroscopy. Its fold contains a unique winged helix-turn-helix (wHTH) motif within a novel scaffold. Surprisingly, a predicted P loop ATP binding motif is in fact the wing of the DNA binding motif. Structural and genetic analysis has identified determinants of DNA recognition specificity within the wHTH motif and the DNA recognition sequence. The structure reveals an unexpected DNA binding mode and provides a mechanistic basis for the concerted action of gpNu1 and Escherichia coli integration host factor during assembly of the packaging machinery.


    Organizational Affiliation

    Department of Pharmacology, University of Colorado Health Sciences Center, Denver 80262, USA. tonny.debeer@astrazeneca.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TERMINASE SMALL SUBUNIT
A, B
68Escherichia phage lambdaMutation(s): 0 
Gene Names: Nu1
Find proteins for P03707 (Escherichia phage lambda)
Go to UniProtKB:  P03707
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1J9I Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-08-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance